Related Clues:

• Message on an offstage card
• Hint: stick in billiard room
• Billiards stick in line, it's said
• Act as a prompt
• Oral trigger
• Signal on the set
• 'Psst, you're on,' e.g
• Type of card for an actor
• Pool-shooter's stick
• Pool hall item
• Stick with chalk on one end
• Actor's alert
• Hint for an actor
• Pool hall stick
• Eightball player's need